Better name lookup

src/freedombone

@@ -2417,8 +2417,6 @@ function get_mariadb_owncloud_admin_password {
 
 function backup_directory_to_usb {
   echo 'function backup_directory_to_usb {' >> /usr/bin/$BACKUP_SCRIPT_NAME
-  echo "  MY_NAME=\"$MY_NAME\"" >> /usr/bin/$BACKUP_SCRIPT_NAME
-  echo '' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '  if [ ! -d ${1} ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '    echo "WARNING: directory does not exist: ${1}"' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '  else' >> /usr/bin/$BACKUP_SCRIPT_NAME
@@ -2508,6 +2506,7 @@ function create_backup_script {
   echo 'if [ $2 ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '  MY_USERNAME=$2' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'MY_NAME=$(getent passwd $MY_USERNAME | cut -d: -f5 | cut -d, -f1)' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'if [ ! -b $USB_DRIVE ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo '  echo "Please attach a USB drive"' >> /usr/bin/$BACKUP_SCRIPT_NAME